In 2016 I was part of the Creature Effects team at Framestore Film in London and I was given the opportunity to develop the simulation Rig for Baby 'Grooty' Groot during the sequence when he becomes the mascot for the Ravagers.
The Ravager suit was a complex garment featuring zippers, buckles, pads, threading, belts and patches, all of which had to simulate and reflect the real world properties such as rubber, metal or heavy cotton. The rig was built from the ground up and was designed to handle collisions from multiple pieces at one time as well as cope with whatever Grooty was performing in shot, from picking up objects to sitting down.
One aspect of the rig which performed well was the option to load nCloth presets that would instantly transform the cloth appearance. At one point Grooty is trenched in beer, the cloth had to feel like the material was soaked, the preset changed all nCloth and constraint settings, dialed in pressure as well as disabling certain parameters . The presets were also used to simulate the suit in slow motion.
In order to hit the number of shots requiring Grooty wearing the Ravager suit, the rig was designed so the artist team could at the very least run the rig automatically and get 70 or 80 per cent of the shot completed and then iterate further.
The rig had built in finalling to fix any animation niggles such as pose intersections or fast motion and could be tweaked by the individual artist.
I was very pleased with the resulting rig and shots but more importantly to be part of an awesome CFX team for those months spanning 2016 and early 2017.
"We Are Grooty"
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